KVM: PPC: Book3S HV: Add a VM capability to enable nested virtualization

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With this, userspace can enable a KVM-HV guest to run nested guests
under it.

The administrator can control whether any nested guests can be run;
setting the "nested" module parameter to false prevents any guests
becoming nested hypervisors (that is, any attempt to enable the nested
capability on a guest will fail).  Guests which are already nested
hypervisors will continue to be so.

Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Paul Mackerras <paulus@ozlabs.org>

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Paul Mackerras 2018-09-21 20:02:01 +10:00

parent 9d67121a4f

commit aa069a9969

5 changed files with 58 additions and 9 deletions

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include/uapi/linux/kvm.h

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